Fast exhausts improve performance by making more RPM and give more power. They're all shorter than a original aprilia exhaust.

Arrow	This is the Arrow exhaust. It's a good racing exhaust. Costs: 160 dollar for the pipe 110 dollar for the aluminium silencer 150 dollar for the carbon silencer
	The Gianelli racing exhaust, is the most known (I think) It's also one of the best. The cost are not to high. Costs: 130 dollar for the pipe 70 dollar for the silencer
NEXONE	The Nex-one exhaust. I find it a cool exhaust, but I don't know the performance and costs
	The polini exhaust is the best for the polini 68cc Cilinder Costs: 225 dollar with the silencer
Jolly Moto	The Jolly-moto exhaust. These are real fast racingexhaust. But they're very expansive Costs: 350 dollar with a carbon silencer
Jolly Moto	The Jolly-moto exhaust. These are real fast racingexhaust. But they're very expansive Costs: 290 dollar with a aluminium silencer

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